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Old 03-20-2020, 12:16 PM   #1
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Dash Blower Motor location?

Resurrection of a 1994 Vectra WCM34RA , P30 Workhorse chassis with 24k miles sitting on storage lot since 2004. Running, driving, inspected and tagged as of yesterday March 19 2020. It still has several systems and issues to go through and recondition. One being the dashboard blower fan is working intermittently. My Chevy MH chassis Service guide has nothing about the blower motor other than it was installed by coach builder.
1. Where am I looking? Location?
2. Any Members know a part number? Any chance OEM part was upgraded to a more forceful blower motor? When running on high seems okay but I am for more air movement.
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Old 03-28-2020, 03:07 PM   #2
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No person responded but for another Winnebago Vectra owner with the same issue it’s inside the cab right behind the passenger dash panel that has two output vents. Blower motor seems fine so I am going to check the blower motor resister which is on the outside screwed into the ac evaporator Box. Interesting the blower motor resister is a ford motorcraft part...
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Old 03-28-2020, 03:29 PM   #3
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Yours parts manual any help?

Resistor looks to be: SCS 035-0006

SCS Frigette is long gone, but looks like Victory Climate Systems still lists the part under the SCS number:

But, I bet you're right, it's probably a Ford part, and available cheaper that way.

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Old 03-28-2020, 05:29 PM   #4
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Thank you.
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Old 03-28-2020, 07:11 PM   #5
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I am not specifically familiar with your particular coach but many motorhomes of that generation used the vacuum off the engine to power the various heat and A/C controls. A coach of that age that has been sitting that long more than likely has vacuum leaks due to rodents or rubber/plastic vacuum lines disintegrating. It could be your blend valves and/or mixing valves are not sending the blower air to the right locations or may actually be blocking the airflow. Those valves are moved by vacuum motors or actuators. Just something to think about.
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Old 03-28-2020, 07:48 PM   #6
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Thanks I am on the look out for this. I think Chevy used two dash control system to control the temperature and I think mine is old fashioned cable going to the ac evap coil box same location as the blower motor resister.
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Old 03-28-2020, 09:13 PM   #7
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Sometimes a bit of corrosion can do weird things. I often try a shot of WD-40 to soak into the switch contacts as an easy try before killing myself to find the hard stuff!
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Old 04-01-2020, 04:59 PM   #8
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Check the hoses for stuff that fell in to the vents or was sucked into the system. That may be partially blocking the hose thus reducing the flow rate. Always hated and still hate the idea of using flexible plastic hose with lots of folds for hvac.
RUSTIC is good.
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cat, dash

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